Which one for the wife?

I have two Shuttles sitting here. I told a friend I would build one for him, the other goes to my wife. Here's the rub....she has been using the older one for a while, and it's all set up for her (docs, shortcuts, and spyware included). If I give me buddy her Shuttle, and give her the newer one, it means reformatting and reinstalling some stuff. If I leave her with the one she has, and give my buddy the newer Shuttle, it saves me time....

On the other hand...30GB < 200GB, and PCIE capability is nice, since I could throw my 6800GTS into the SB when I upgrade someday.

What do you guys think? Is there a big enough difference between the two to justify swapping the files and settings, or should I keep what I have and hand off the Intel based Shuttle?

BTW....I went with keeping the one I have up and running with her data on it (The older AMD Shuttle). The newer one is a gift, and it saved me some time reinstalling Windows on the older system by giving it to our friends.